Mechanical movement for intermittent motion



Ju1 4,1933. W R 1,916,871

MECHANICAL MOVEMENT FOR INTERMITTENT MOTION Filed June 6, 1931 s Sheets-Sheet 1 INVENTOR GEORGE W. SWIFT JR.

July 4,1933. I 3 w sw JR 1,916,871

MECHANICAL MOVEMENT FOR INTERMITTENT MOTION Filed'June 6, 1931 s Sheets-Sheet 2 V IL;

A NEY} July 4, 1933. r

G. W. SWIFT, JR

MECHANICAL MOVEMENT FOR INTERMITTENT MOTION Filed June 6, 1931 3 Sheets-Sheet 3 INVENTOR GEORGE W. SWIFT JR.

tones from the axis of shsfit 15. In this Way, any desired amount of dwell may foe sccured in sin-intermittent motion, the spur gear 19 being in continuous mesh with a spur gear 21 key e6; to one end of e riven feed. shaft 22. As shown best in Figure 2, the feed shsfi; 22 is journeled upon a fixed nnis in axially-speed stsnclsrcls 23 and 24 which are securerl so the base nicks 7 by means of bolts gecureci so on siieffs 22, is e drum 2% provirle with axially-spaced feeii rolls??? which are colon sed. to cooperate with upper 1 rolls 2'8 cnrecl so upper feed siren;

erence thereof.

"Elle morinieri form or improved Enechanicel movemenc shown in Figures 6 and '1 is substantially similar in eonstrnciion io also shown in Figures 1 5 inclusive nn. for

this reason ports of sirn r form and funcsion in one swo- GiIllBOCl ore indicate-i '52 like reference chereceers. Thus, as shoe 1 in Figures 6 and i", the shaft in miteentiy driven by series of gears of." lure conseruction, erro meni; enri mounting those shown in Figures 1 e0 5, the tensionspring 10 shown in these lnss-meninonefii views, however, isein omitted. As shown in Figures 6 and 7, on the other hsnol, on flrim ing gear 19 is rovicleci with o concentriceily errsngeol axis, Fl -projecting pin or trunnion 30 which is oscilletebly connected to the intermittently-driven shaft 22 by means of s connecting link 31. Seiii link serves at once to prevent the pinion 19 being thrown one of mesh with the driven pinion 21 and to maintain a constant clisience between the rotsry axes of the meshing gears during the rising and falling movements of the oscillatory arm 9.

Operation t will be understoocl from. the foregoing explanation that as the power shaft 1 operates through the train of gears to rotate the transmission shaft 15 in the outer end of oscillatory arm 9, the gear 19 is revolved around the axis of shaft 15 while remaining continuously in mesh with the spur gear 21 on the fixed. axis of driven feed shaft 22. If the crank arm 17 revolves'in a. clockwise direction aroun" iahe a xis of shaft 15 as indicated by the arrow 1n Figures 3, 4 and 5, the rotary axis of ear 19 m passing from its position shown in .1 igare 8 to its position shown in Figure 4, wili move over e path snbstsntiolly concentric to the rotary exis of shaft 22 nncl hence will roll idly on one periphery oi? gear 21 so time cine ing ibis idle movement, the driven shaft 22 will rernnin at rest. As said. crank arm 1? continues to revoive from its position shown in Figure 1,l1owever, the circular pee-tn trocefl by the axis of gear 19 in its movement around one axis of sin s 15, is no longer concen srioso the onis of sh 22 hence becomes active in driving; the 21 un"i the "s 'n cccnroy their reios e. The resn of slow", growing sccclerof; sv'nic "s succeed filial/EL;

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opposiie ns between one Sl'iflii), e roniei nionnee on one? of seiai scno s iiri'ren eoiecnloio on o fixed axis, keyed to 55116; driven sliefe, and; enosl'ier gear monni'efi on said redial arm with its exis offset from the enis oi said stub nnri continuously in mesh Wish ssifi oirivs-n gees,

2. Webieeriing mechenisrn according no claim 1, in which roeens ere orovicleii for recoining the gear on ssi reclisl nrrn mesh with the 'olriven shs'iii gear during relative sn nlor iisplscements besrveen she rotary exis oiseifi gears.

3. Web-ieerlin mechanism IEBCCOF1R to claim 1, 1n whim moons are provirle ior P (EL pressing seiol oscilleteblserrn in a. direction 7 to reesin ssifi redial arm enfi ciriven shaft gears in mesh with each other rinsing relativesnguler displacements befiween the rotary axes of seiol gears.

4 Web-feecling mechanism eccorcling to churn 1, in which she gear on said redial arm is provided with a, concentric trunnion and in which a connecting link is connected at o posite ends to said trunnion and driven s aft respectively. v

5. In an. intermittent powe'r'drive of the haracter described, the combination of "o driven shaft journalled about a fixed axis, a gear keyed to one end of and concentric with said driven shaft, a supporting beam oscillatably mounted at one end about a fixed axis parallel to the fixed axis of said driven shaft, the other end of said oscillatable supporting beam being movable towards and away from the axis of said driven shaft, a stub shaft journalled in said other end of the supportmg beam, an orbital gear eccentric to said stub shaft and continuously meshing with said driven shaft gear, means rigidly uniting said orbital gear to said stub shaft and means for driving" said stub shaft.

6. in an intermittent power drive, the cont bination of a shaft rotatable about a fixed axis, a gear concentrically keyed to one end of said shaft, a supporting beam oscillatably mounted at one end about an axis distant from the fixed axis of said shaft and having its other end movable towards and away from the fixed axis of said shaft, a stub shaft journalled in the outer end of said supporting beam, an orbital gear movable around the axis of said stub shaft and continuously meshing with the gear on said shaft rotatable about a fixed axis, means for connecting said orbital gear to said stub shaft, and a link having one end pivotally connected to the shaft which is rotatable about a fixed axis and its other end concentrically pivoted to said orbital 7. lln a power drive, the combination of a power shaft continuously rotatable about a fixed axis, a driving gear keyed to said power shaft, a driven shaft rotatable at intervals about a fixed axis parallel to and distant "from said fixed axis of the power shaft, a support, ing beam oscillatably mounted at one end upon said power shaft and having its other end movable upwardly and downwardly with respect to the horizontal axial plane of said power shaft, a gear keyed to one end oil said driven shaft, a power-transmitting stub shaft journalled in the outer end of said beam and projecting at opposite sides thereof, a radial arm mounted on one end of said stub shaft adjacent to the gear on said driven shaft, a gear on the other end of said stub shaft, an intermediate gear rotatably mounted on said supporting beam and meshing with the gears on said stub shaft and said power shaft,'and an orbital gear secured to said radial arm with its axis eccentrics-11y disposed with respect to the axis of said stub shaft, said orbital gear being adapted by its continuous revolution around the axis of said stub shaft to intermittently drive said gear on the driven shaft and to raise and lower the outer end of said supporting beam.

8. In an intermittent power drive, the combination of a power shaft continuously rotatable about a fixed horizontal axis, a driven shaft rotatable at intervals about a fixed horizontal axis parallel to the fixed axis of said power shaft, the distance between the respective horizontal planes including the fixed axes of said power and driven shafts being relatively small as compared to the distance between the respective vertical planes including said fixed axes, a supporting beam pivotally mounted at one end upon said power shaft and having its other end extending past said driven shaft, a gear keyed to said riven shaft, a power-transmitting stub shaft journalled in the outer end of said beam and projecting at opposite sides thereof, a radial arm mounted on one end of said stub shaft, a gear lreyed to the other end of said stub shaft, an

orbital gear secured to said radial arm with its axis eccentrically disposed with respect to the axis of said stub shaft, saidorbital gear being continuously in mesh with the gear on said driven shaft, a drive gear lzeyed to said power shaft, and an idler gear jo'urnalled on said supporting beam and intermeshing with said stub shaft and power shaft gears.

ononon w. swrr'r, as.

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